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New Edge Cobras
Livernois stg3 porting
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<blockquote data-quote="tmhutch" data-source="post: 13456700" data-attributes="member: 4434"><p>Call Fox Lake or Total Engine Airflow. Both are excellent. If you're running the stock runner length in the stock intake manifold, porting the heads won't be worth much because the RPM will be limited. The stock heads are very efficient up to 6000 RPM. You might pick up 15 - 20 HP. If you're running a short runner intake and can spin the engine 7000+ RPM than the ported heads will be well worth it. Especially for a big bore.</p></blockquote><p></p>
[QUOTE="tmhutch, post: 13456700, member: 4434"] Call Fox Lake or Total Engine Airflow. Both are excellent. If you're running the stock runner length in the stock intake manifold, porting the heads won't be worth much because the RPM will be limited. The stock heads are very efficient up to 6000 RPM. You might pick up 15 - 20 HP. If you're running a short runner intake and can spin the engine 7000+ RPM than the ported heads will be well worth it. Especially for a big bore. [/QUOTE]
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